Skill UI

This skill specializes in creating comprehensive C4 code-level documentation for software projects. It analyzes code directories to generate detailed function signatures, arguments, dependencies, and structural information. It supports various programming paradigms including Object-Oriented, Functional, and Procedural code by producing appropriate Mermaid diagrams like class diagrams and flowcharts. Use this when you need to document internal code structures, visualize component relationships, or establish best practices for code-level documentation within a specific directory.

This expert code review assistant analyzes code for bugs, security vulnerabilities, performance bottlenecks, and design flaws. It provides actionable fix suggestions across multiple programming languages including Python, JavaScript, Go, and Rust. Evaluates correctness, security, performance, design, and readability to ensure high-quality software development standards.

Provides functional programming patterns for building type-safe, testable Node.js and Deno backend services with fp-ts, ReaderTaskEither, and functional dependency injection.

This skill teaches practical error handling in TypeScript using the fp-ts library. Instead of traditional try/catch blocks, it uses Either and TaskEither to treat errors as values. This approach leads to cleaner, more predictable code. It covers validation, domain errors, and real application patterns without academic jargon, focusing on functional programming best practices for production environments.

A practical, jargon-free guide to functional programming in TypeScript, showing an 80/20 approach, when FP helps, and when simpler code is better.

Practical, jargon-free guide to fp-ts functional programming in TypeScript. Covers 80/20 patterns for nullable values, errors, async workflows, refactoring, and when to avoid FP.

Practical fp-ts patterns for React applications, covering hooks, state management, forms, data fetching, and loading/error/success handling with type-safe functional programming.

This skill provides a quick reference for fp-ts types in TypeScript. It helps users decide between Option, Either, Task, and TaskEither types based on async behavior and error handling needs. It includes common imports, one-line patterns for wrapping values, and pattern matching examples. Ideal for developers needing type selection guidance or import snippets for functional programming tasks.

This skill provides comprehensive guidelines for writing idiomatic Go code. It covers error handling, slices, maps, concurrency with goroutines, structs, interfaces, and common anti-patterns. Use it to improve code quality and adhere to Go community standards.

Design and review Haskell code: advanced type systems, pure domain logic, parsing with Megaparsec/Aeson, STM and async concurrency, Cabal/Stack builds, and measured performance tuning.

Master modern Julia 1.10+ development with performance optimization, multiple dispatch, and production-ready practices. Covers scientific computing, data science, machine learning, web development, and package management. Focus on type stability, modern tooling, testing, and CI/CD pipelines for high-performance applications.

Expert patterns for Kotlin Coroutines and Flow, covering structured concurrency, error handling, reactive streams, and testing strategies for asynchronous programming.